Gear



A. MAIER GEAR March 11, 1930.

Filed Jan. 18, 1929 fll V Int/anion- Patiented Mar. 11, 1930 UNITEDSTATES PATENT orrlce ALBERT MAIER, OI 'FBIEDBICHSHAFEN, GERMANY,ASSIGNOZB TO ZAIHNBADFAIBBIK AKTIENGESELLSCHAFT, Q1 FRIEDRICHSHLI'EN,GERMANY GEAR Application filed January 18,1929, Serial No. 338,861, andGermany January 28, 1928.

My invention relates to gears and has special reference to change speedgears in motor vehicles. In many cases the motor is wanted not only fordriving the car but also for dfiving some auxiliary machine or liftingapparatus, pump, fire ladder or the like.

Especially in these latter cases it has always been the desire to havethe power shaft of the gearing which is to drive the additional machinesubstantially in the middle thereof and if possible right above thedriving and driven shafts of the vehicle. When using substantiallycentrally situated striker rods .0 erated by a lever which is alsosituated subs antially centrall the gear box must be extremely enlargeto solve this problem.

According to my invention there is no necessity of alterin thehorizontal dimensions of the gear box or even only the cover is changed.I provide an intermediate wheel above the ordinary gear wheels andshafts, approximately in the plane of the striker rods therefor. Thiswheel I provide with a central aperture or indenture and with annulargrooves 011' the inner side face towards the striker rods,

so that these may enter into these openings when being shifted in thedirection towards this wheel. Furthermore I ut the power shaft drivensaid interme iate wheel substantially b above the driving and drivenshafts and ournal it, in the upper portion of the ear ox, for example,in the cover thereof. he lever for shifting the striker rods, accordingto my invention, is bent around the up V per power shaft so as not tointervene therewith. The preferred construction, according to myinyentiomis to give the lever in its middle, portion where the powershaft is situated the shape of an eye or the like with an openingtherein so that this shaft extends right through this more or lesseye-shaped aperture.

. The invention will be understood best having reference to the drawingwhich represents an example embodying my invention.

Fig. 1 is a longitudinal vertical section through a. change speed gear;Fig. 2 1s a transverse vertical section taken on line A-A ut only theupper portion An intermediate spur wheel 9 journaled in,

the casing 10 of in the cover thereto serves for driving additionalshaft lladapted for driving 'a pump or whatever supplementary machinethere may be. This shaft 11 is situated right above the two main shafts1 and 2 for which purpose wheel 9 has indentures and grooves 12 in whichthe ends of striker rods 4, 5 and 6 are received so that the gear box.10 need not be longer than usual. Lever 7 in its middle portion 13 iseye-like shaped and'has an opening or aperture 14.- through which shaft11 passes. a

Thus, 8CCOI'd1I1g to my invention, it is possible to install anadditional symmetrically situated shaft in any gear box simply byexchanging the cover or upper portion thereof and by making use of myspecial shape of the operating lever. 1

I donot want to be limited to the exact details described or shown inthe drawings, as many variations will occur to those skilled in the art.r

What I claim is:

1. In a motor vehicle the combination of an ordinary change speed gearwith an addi-' tional power shaft, said power shaft being situatesubstantially centrally above said speed gear, said combinationcomprising a driving shaft, a driven shaft, ordinary speed earsconnectin said two shafts, striker rods or shifting said gears, a leverfor opera ing said striker rods, said striker rods being situated abovesaid gears, said lever extending substantially vertically, an additionalpower shaft, an intermediate. wheel adapted to be driven by said eedgear and to drive said power shaft, 'sai wheel being situatedsubstantially opposite to said striker rods and having indenturesadapted to receive the ends of said striker rods when shifted to wardssaid wheel. v

2. In a motor vehicle the combination of an ordinary chan e speed gearwith an addition'al power sha said power shaft, being.

situated substantially centrally above said speed gear,-said combinationcomprising a driving shaft, a driven shaft, ordinary speed gearsconnectin saidtwo shafts, striker rods 18 for shifting sai gears, alever for operating said striker rods, said striker rods beinsituatedabove said gears, said lever exten ing substantially vertically,an additional power shaft, an intermediate wheel adapted to be driven'bysaid s eed gear and to drive I said power shaft, sai wheel beingsituated substantially opposite to said striker rods and havingindentures adapted to receive the ends of said striker rods when shiftedto- 2 wards said wheel, said lever bei g shaped so as to allow for saidshaft to pass. 3. In a motor vehicle the combination of anordinarychange speed gear with an additional power shaft,'said-powershaft being situated substantially centrally above said speed gear, saidcombination comprising a driving shaft, a driven shaft, ordinary speedgears connecting said two shafts, striker rods for shifting said gears,a lever for operating said striker rods, said striker rods bein situatedabove said gears, said lever exten ing substantially vertically, anadditional power shaft, an intermediate wheel adapted to be driven bysaidspeed gear and to drive as said power shaft, said wheel beingsituated substantially opposite to said striker rods and havingindentures adapted to receive the 'endsof said striker rods when shiftedtowards said wheel, said lever in its middle por- 40 tion having aneye-like shape with an opening therein, sald power shaft passing throughsaid eyeopening. l ALBERT 'MAIER.

